113. The numbers didn't come from the NRA.

Google: El Paso TX murders 2010 and look at the top return. It is from a new media outlet. Five (5) murders in 2010.
Google, Juarez Mexico murders 2010 The fifth entry is the first one to have the total murders for 2010. 3,111 murders in 2010

That El Paso has more guns than people is pretty much common for any town or city in Texas. If more guns meant more death, the El Paso should have more murders than DC or Chicago. Obviously, guns are not the only factor.

About 90% of Mexican guns don't come from the U.S. Instead the cartels get better guns at a lower price through the internation arms black market.